The Harry Potter series author posted 12 tweets offering encouragement to people who are “going through tough times” over the holiday season that may be worsened by “images of perfect lives, which bear as little relation to reality as tinsel does to gold.”

Rowling promised “extraordinary transformations are possible” and “nothing is forever,” before urging people to remember Christmas Day itself was “in the end, just a day.” “It isn’t a test or a scorecard of you or your life, so be kind to yourself,” she added.